Valve.



Patented lune ll, l90l. H. J. SCHMITT.

VALVE.

(Apglicafion filed In. 12, 1901.)

(No Model.)

FIG.

FIE. E.

U 70 I z y !!!7!!! w-I W! 1 11V VE 1V TOR Attorney morouwo" WASMI UNITED STATES PATENT OFFICE.

IIENRY JOSEPH SCHMITT, OF VYNDMOOR, PENNSYLVANIA.

VALVE.

SPECIFICATION forming part ot Letters Patent. No. 675,979, dated June 1 1, 1901.

Application filed March 12, 1901. Serial No. 50,790. No model.)

To (tZZ whom. it may concern:

Be it known thatLIIENEY JOSEPH SCHMITT, a citizen of the United States, residing at Wyndmoor, in the county of Montgomery and 5 State of Pennsylvania, have invented certain newand useful Improvements in Valves; and

I do hereby declare the following to bea full,

clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to valves for water, steam, and other fluids; and it consists in the novel construction and combination of the I5 parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a vertical section through the valve. Fig. 2 is a sectional plan view. Fig. 3 is a detail view of one of the valve-plates.

A is the body of the valve, and B represents two valveseats, which are preferably screwed into the body of the valve and which are arranged parallel with each other.

.13 is a bonnet secured to the upper part of the bodyA and provided with a stuffing-box I).

C is the valve -spindle, journaled in the stuffing-box and provided with an operating wheel or handle 0. The valve-spindle C is screw-threaded, and it engages with a valvecarrier D. In the valve shown the carrier D is screw-threaded to fit the valve-spindle; but the valve-spindle may be made to move vertically, if desired, and it may be connected to the valve-carrier in any approved manner,

so as to raise and lower the said carrier.

E represents two valve plates or disks provided with sockets e at their upper parts,

which engage with projections e on the carrier. The plates E have inclined surfaces f on their backs and have flanges f on their lower edges.

F represents wedge-shaped projections on the inside of the body or casing A, which come between the surfacesf when the valveplates are lowered.

The valve is opened by raising the valveplates by means of the valve-spindle, and the flanges f then keep the plates from coming together at their lower edges. \Vheu the valve-plates are pushed down bymeans of the valve-spindle, the inclined surfaces f bear against the projections F and are forced apart by them, so that the said valve plates are pressed into close contact with the valveseats and the valve is closed tightly.

\Vhat I claim is In a valve, the combination, with a valvebody provided with two valve-seats, and having two projections F which project laterally toward each other from the sides of the body between the valve-seats; of two valve-plates having inclined plane surfaces f on their backs which bear against the said lateral projections when the said valve-plates are pressed downward, and means for raising and lowering the said valveplates, substantially as set forth.

In testimony whereof I ailix my signature in presence of two witnesses.

HENRY JOSEPH SCIIMITT.

\Vitnesses:

WILLIAM WALKER HARPER, ADDISON J. BENN. 

